Harvesting and selling seed of southern pines
By: [by Philip C. Wakeley]
Series: Leaflet / U.S. Dept. of Agriculture -- no. 156; Leaflet (United States. Dept. of Agriculture) -- no. 156.
Publisher: U.S. Dept. of Agriculture
Published: 1938
Place of publication: Washington, D.C
Language: eng
Subjects: Southern pines; Seeds; Seed technology; Seed crops
Notes: Cover title.

"Issued April 1938"--P. 2.